I'm a professional photographer and yet it pains me to say that Smartphone have surpassed SLR, DSLR, Mirror less cameras in terms of user experience, accessibility and is on par in some sense to quality (given that most photos are viewed on screens and not of phyical prints)
I'm also a big techy and what bothers me is the constant push from phone maker of the camera. It more important than making calls.
We'll never be satisfied with camera improvements.
Or.....
Have phone makers realize that Smartphone tech has peaked and the only way to create excitement is another camera bump.
Maybe what consumers really want is an always connected camera device that t occasionally make phone calls, but Smartcamera doesn't seem profitable
I agree with "smartphone camera is on par in some sense to quality" with absolutely zero percent.
I've been taking a lot of photos with smartphones for years (iPhone, S20U, S21U), but I when I compare the images with those from my full frame camera, you immediately realize how bad smartphone cameras really are. And yes, you can already see these differences in many images even on the small display of a smartphone. Most people who only use smartphones simply have no idea and have never used a good camera. It's also like television back then. Nobody thought about HD when there was only analog TV. But when HD suddenly became available, no one wanted to watch analog TV anymore. It's the same with HD/4K and smartphone cameras/good cameras.
Bokeh, dynamic range, focal length, noise, flares, distortions, details, etc., these are all things that are much better with good cameras.
In practice, many things are simply not possible with smartphone cameras. Sports, wildlife, natural family/party photos (without posing), generally everything that requires higher focal lengths, indoor photography without artificial light and much more. And everything that can be done with a smartphone, a good camera does better.
Of course, this doesn't mean that smartphones can't take good pictures, because ultimately the most important factor for good pictures is not the camera, but the person behind the camera. But even a bad photographer will improve his results enormously if he uses a good camera instead of a smartphone.
The laws of physics are immutable. Have you seen the size of a smartphone camera sensor compared to the one in a nice DSLR?
That said, phone cameras are pretty amazing these days and you honestly don't need a big DSLR for your vacation photos and selfies. Pro photographers will still hang a big DSLR around their necks because there's no way to defy the laws of physics.
DSLRs are gradually being replaced by DSLMs (mirrorless).
Depending on the lens, DSLMs can also be quite compact.